A statistical study of the spatial distribution and source-region size of chorus waves using Van Allen Probes data

	A statistical study of the spatial distribution and source-region size of chorus waves using Van Allen Probes data
	Teng, Shangchun; Tao, Xin; Li, Wen; Qi, Yi; Gao, Xinliang; Dai, Lei; Lu, Quanming; Wang, Shui; Tao, X (reprint author), Collaborat Innovat Ctr Astronaut Sci & Technol, Hefei, Anhui, Peoples R China.
刊名	ANNALES GEOPHYSICAE
	2018
卷号	36 期号:3 页码:867-878
ISSN号	0992-7689
英文摘要	The spatial distribution and source-region size of chorus waves are important parameters for understanding their generation. In this work, we analyze over 3 years of continuous wave burst-mode data from the Van Allen Probes mission and build a data set of rising-tone and falling-tone chorus waves. For the L shell range covered by Van Allen Probes data (3:5 <= L <= 7), statistical results demonstrate that the sector where rising tones are most likely to be observed is the dayside during geomagnetically quiet and moderate times and the dawn side during active times. Moreover, rising-tone chorus waves have a higher occurrence rate near the equatorial plane, while the falling-tone chorus waves have a higher possibility to be observed at lower L shell and higher magnetic latitudes. By analyzing the direction of the Poynting wave vector, we statistically investigate the chorus sourceregion size along a field line, and compare the results with previous theoretical estimates. Our analysis confirms previous conclusions that both rising-tone and falling-tone chorus waves are generated near the equatorial plane, and shows that previous theoretical estimates roughly agree with the observation within a factor of 2. Our results provide important insights into further understanding of chorus generation.
语种	英语
资助机构	NSFC [41631071, 41474142, 41674174]
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/6355]
专题	国家空间科学中心_空间科学部
通讯作者	Tao, X (reprint author), Collaborat Innovat Ctr Astronaut Sci & Technol, Hefei, Anhui, Peoples R China.
推荐引用方式 GB/T 7714	Teng, Shangchun,Tao, Xin,Li, Wen,et al. A statistical study of the spatial distribution and source-region size of chorus waves using Van Allen Probes data[J]. ANNALES GEOPHYSICAE,2018,36(3):867-878.
APA	Teng, Shangchun.,Tao, Xin.,Li, Wen.,Qi, Yi.,Gao, Xinliang.,...&Tao, X .(2018).A statistical study of the spatial distribution and source-region size of chorus waves using Van Allen Probes data.ANNALES GEOPHYSICAE,36(3),867-878.
MLA	Teng, Shangchun,et al."A statistical study of the spatial distribution and source-region size of chorus waves using Van Allen Probes data".ANNALES GEOPHYSICAE 36.3(2018):867-878.